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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $12,981 | 915 | 915 |
| 2006 | $50,703 | 20,743 | 20,743 |
| 2007 | $45,221 | 6,097 | 6,097 |
| 2008 | $211,692 | 101,466 | 101,466 |
| 2009 | $41,377 | 14,603 | 14,603 |
| 2010 | $104,650 | 17,586 | 17,586 |
| 2011 | $82,744 | 44,347 | 44,347 |
Note: Quantity represents Weight in kilograms
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